I have been contacted by the Coal Authority to confirm that they will finish their cavity in-filling and stabilisation works next week.
The Council have confirmed to me that they have plans in place to get on-site as soon as the Coal Authority give them the go ahead, to start road reinstatement works. The Council expect to finish this work by the end of June.
When the Council take over, they will still have a 5m by 15m hole to fill with concrete. They will then have to reroute some of the electric, gas, sewer and water services, some of which have been temporarily diverted during the in-filling, before undertaking reconstruction of all layers of the road (this is far more involved than simple resurfacing).
I will continue to post updates on this website and my Facebook Page as I get them.